20158850 has 24 divisors (see below), whose sum is σ = 37707780. Its totient is φ = 8017920.

The previous prime is 20158843. The next prime is 20158871. The reversal of 20158850 is 5885102.

It can be written as a sum of positive squares in 6 ways, for example, as 8862529 + 11296321 = 2977^2 + 3361^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8606 + ... + 10694.

Almost surely, 2^20158850 is an apocalyptic number.

20158850 is a deficient number, since it is larger than the sum of its proper divisors (17548930).

20158850 is a wasteful number, since it uses less digits than its factorization.

20158850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 20158850 is about 4489.8607996240. The cubic root of 20158850 is about 272.1585094697.

The spelling of 20158850 in words is "twenty million, one hundred fifty-eight thousand, eight hundred fifty".